package service;

import entity.Product;

import java.util.Map;

public interface IShoppingcarService {

    void countUp(Map<Product, Integer> car, Product p, int count);//增加商品数量
    void countDown(Map<Product, Integer> car, Product p, int count);//减少商品数量
    void removeProuct(Map<Product, Integer> car, Product p, int count);
}
